Miniature rose plant named `KORlinik`

ABSTRACT

A miniature rose plant having rapid rooting of softwood cuttings; compact, well-branched growth; long lasting, bright yellow flowers; and good shelf life as a pot rose.

The present invention relates to a new and distinct variety of roseplant of the miniature class which was originated by me by crossing anunnamed seedling, (not patented), the parentage of which is unnamed,with `KORdaba` (U.S. Plant Pat. No. 9,116).

The primary objective of this breeding was to produce a new rose varietyhaving a compact, well branched growth habit, the ability to rootrapidly from softwood cuttings, to grow rapidly and flower quickly in a10 cm pot, to have good shelf life, and to have flowers that hold theircolor without fading. The objective was substantially achieved, alongwith other desirable improvements, as evidenced by the following uniquecombination of characteristics that are outstanding in the new varietyand that distinguish it from its parents, as well as from all othervarieties of which I am aware:

1. Long lasting, bright yellow flowers;

2. Compact, well branched growth;

3. Rapid rooting from softwood cuttings;

4. Good shelf life as a 10 cm pot rose.

`KORlinik` can allso be grown as an attractive miniature garden rose.

Asexual reproduction of this new variety by cuttings, as performed atSomis and Wasco, Calif. and Spaarieshoop, Germany, shows that theforegoing and all other characteristics and distinctions come true toform and are established and transmitted through succeedingpropagations.

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

The following is a detailed description of my new rose cultivar withcolor descriptrions using terminology in accordance with The RoyalHorticultural Society (London) Colour Chart, except where ordinarydictionary significance of color is indicated.

Parentage:

Seed parent.--Unnamed seedling (not patented), the parentage of which isunnamed.

Pollen parent.--`KORdaba` (U.S. Plant Pat. No. 9,116).

Classification:

Botanical.--Rosa hybrida.

Commercial.--Miniature.

FLOWER

Observations made from specimens grown in a greenhouse environment atSomis, Calif. and Sparrieshoop, Germany.

Blooming habit: Continuous

Bud:

Size.--3/4" long when the petals start to unfurl.

Form.--Long, pointed ovoid.

Color.--When sepals first divide, bud color is Yellow Group 13A. Whenhalf blown, the upper sides of the petals are Yellow Group 13A and thelower sides of the petals are Yellow Group 13A.

Sepals.--Color: Green Group 138B. Surface texture: Covered in finehairs. There are three lightly appendaged sepals. There are twounappendaged sepals with hairy edges.

Receptacle.--Color: Green Group 137C. Shape: Funnel. Size: Medium(5/16"×3/8"). Surface: Smooth.

Peduncle.--Length: Short (2"). Surface: Smooth, with a few small glands.Color: Medium green. Strength: Stiff, erect.

Bloom:

Size.--Small. Average open size is 11/2" to 13/4".

Borne.--Singly, several together in clusters of 3 to 5 having pyramidalshape.

Stems.--Short (6-8"), strong.

Form.--When first open: High centered. Permanence: Outer petals curlback, quill fashion.

Petalage.--Number of petals under normal conditions: 25-30.

Color.--The upper sides of the petals are Yellow Group 13A. The reversesides of the petals are Yellow Group 13A. The bases of the petals haveno noticeable color change. The major color on the upper sides is YellowGroup 13A.

Variegations.--Occasional greenish white streak on the guard petals.

Discoloration.--There is no color change through day nine on the plant.Then the individual bloom will fade to Yellow Group 13C before petalfall at day eleven or twelve.

Fragrance.--Slight.

Petals:

Texture.--Thick.

Shape.--Deltoid.

Form.--Tips slightly recurved, edges slightly quilled.

Arrangement.--Imbricated. Petaloids in the center are few.

Persistence.--Petals drop off cleanly before drying.

Lastingness.--On the plant: Long (10-11 days). As a cut flower: verylong (12-13 days).

Reproductive parts:

Anthers.--Size: Medium. Quantity: Many. Color: Yellow. Arrangement:Regular around styles.

Filaments.--Color: Yellow.

Pollen.--Color: Gold yellow.

Styles.--Color: Greenish white.

Stigmas.--Color: Greenish white.

Plant:

Form.--Bush.

Growth.--Vigorous; dwarf; upright; branching: Height of mature plant istwenty-four inches, width is eighteen inches, if grown as a miniaturegarden rose outdoors.

Foliage: Number of leaflets on normal mid-stem leaves: Five or seven.

Size.--Small (31/2"×2").

Quantity.--Abundant.

Color.--New foliage: Upper and lower sides: Greyed-Orange 178A, but veryquickly turns Yellow-Green Group 146C on upper surface and 146D on lowersurface. Old foliage: Upper side: Green Group 139A Lower side: GreenGroup 139C.

Leaflets:

Shape.--Pointed oval.

Texture.--Upper side: Leathery, glossy.

Edge.--Serrated.

Serration.--Single, small.

Petiole rachis.--Color: Green.

Petiole underside.--Smooth with occasional prickles.

Stipules.--Medium (3/8"-1/2"); serrated, bearded.

Disease resistance.--Resistant to mildew under normal growing conditionsat Somis, Calif.

Wood:

New wood.--Color: Light Green. Bark: Smooth.

Old wood.--Color: Green. Bark: Smooth.

Prickles:

Quantity.--On main canes from base: Ordinary. On laterals from maincanes: Ordinary.

Form.--Medium; hooked downward.

Color when young.--Green.

Small prickles:

Quantity.--On main stalks: None. On laterals: None.

I claim:
 1. A new and distinct variety of rose plant of the miniaturerose class, substantially as herein shown and described, characterizedparticularly by the rapid rooting of softwood cuttings; its compact,well-branched growth; long lasting, bright yellow flowers; and goodshelf life as a pot rose.